Question
In: Statistics and Probability
A statistical program is recommended. ONE-SAMPLE T TEST : The following observations are on stopping distance...
A statistical program is recommended.
ONE-SAMPLE T TEST :
The following observations are on stopping distance (ft) of a particular truck at 20 mph under specified experimental conditions.
| 32.1 | 30.5 | 31.6 | 30.4 | 31.0 | 31.9 |
The report states that under these conditions, the maximum allowable stopping distance is 30. A normal probability plot validates the assumption that stopping distance is normally distributed.
a) Determine the probability of a type II error when α = 0.01,σ = 0.65, and the actual value of μ is 31 (use statistical software or Table A.17). (Round your answer to three decimal places.)
b) Repeat this for μ = 32. (Round your answer to three decimal places.)
c) What is the smallest sample size necessary to have α = 0.01 and β = 0.10 when μ = 31 and σ = 0.65? (Round your answer to the nearest whole number.)
Solutions
orchestra answered 1 year agoRelated Solutions
This semester we have discussed the following statistical analyses. Z-test One-Sample t-test
This semester we have discussed the following statistical
analyses.
Z-test
One-Sample
t-test
Independent Groups
t-test
Repeated Measures t-test
One-Way ANOVA
Regression
Correlation
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company recorded the stopping distance for each car on both wet and
dry pavement. Results are shown in the table. Complete parts a)
and b).
Car # Dry Wet
1 48 64
2 44 66
3 41 58
4 40 52
5 42 ...
In a test of braking performance, a tire manufacturer measured the stopping distance for one of...
In a test of braking performance, a tire manufacturer measured
the stopping distance for one of its tire models. On a test track,
a car made repeated stops from 60 miles per hour. The test was run
on both dry and wet pavement, with results as shown below.
Wet Dry
210 154
191 153
214 143
200 137
202 130
196 146
198 132
179 144
194 142
217 127
a) Construct a 95% confidence interval for the mean dry...
A statistical program is recommended. A sample containing years to maturity and yield (%) for 40...
A statistical program is recommended.
A sample containing years to maturity and yield (%) for 40
corporate bonds is contained in the data file named
CorporateBonds.
Company Ticker
Years
Yield
GE
1
0.767
MS
1
1.816
WFC
1.25
0.797
TOTAL
1.75
1.378
TOTAL
3.25
1.748
GS
3.75
3.558
MS
4
4.413
JPM
4.25
2.31
C
4.75
3.332
RABOBK
4.75
2.805
TOTAL
5
2.069
MS
5
4.739
AXP
5
2.181
MTNA
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The one-sample z-test and the one-sample t-test both test if a sample mean is representative of...
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A statistical program is recommended. Consider the following data for a dependent variable y and two...
A statistical program is recommended.
Consider the following data for a dependent variable y
and two independent variables,
x1
and
x2.
x1
x2
y
30
12
94
47
10
108
25
17
112
51
16
178
40
5
94
51
19
175
74
7
170
36
12
117
59
13
142
76
16
211
(a)
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(Round...
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A statistical program is recommended.
Suppose that the magnitude of earthquakes recorded in a region
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(iii) chi-square goodness-of-fit test (iv) chi-square test of
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(vi) F−test for multiple regression (vii) one-way ANOVA
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24
26
30
35
40
y
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20
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35
40
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b1x. (Round
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x
9
32
18
15
26
y
11
20
22
17
22
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b1x. (Round
b0 to two decimal places and
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ŷ =
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y. (Use α = 0.05.)
The high p-value and low coefficient of determination...
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